MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71cd57155de969cf6c54d78327e73c065ef7d4944ec147d15007cb372d29b580. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 71cd57155de969cf6c54d78327e73c065ef7d4944ec147d15007cb372d29b580
SHA3-384 hash: f60632d44ff368b646344e3fd3a6af29851bc17e4b3737a0367b86c43c9f4a0c02a82e441a679b0e97d1b437d03fd4ff
SHA1 hash: 5bb2ae97a39c545af0f1dc8c9ff0628a46a456f4
MD5 hash: 38d20cf5e406db0e4f6d79db95cee44e
humanhash: vermont-music-virginia-nevada
File name:Baglinox SL Purchase Order FV22011341.Pdf.exe
Download: download sample
Signature Formbook
File size:824'320 bytes
First seen:2022-08-01 07:55:10 UTC
Last seen:2022-08-08 08:06:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:vm6u10EZxg+gz5MxZwoo4ZqTk7q7PHxoJx:vmdRrgR5NoFZqp7fyJ
TLSH T19105E1742298899AE69F577DE0A45210E7F46E53B043E75E1FC431A82D733A2CE3A187
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 96e8f296ccf2e884 (8 x Formbook, 7 x AgentTesla, 4 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
keylogger packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 676538 Sample: Baglinox SL Purchase Order ... Startdate: 01/08/2022 Architecture: WINDOWS Score: 100 31 www.minneapolisdentist.net 2->31 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 9 other signatures 2->43 11 Baglinox SL Purchase Order FV22011341.Pdf.exe 3 2->11         started        signatures3 process4 file5 29 Baglinox SL Purcha...2011341.Pdf.exe.log, ASCII 11->29 dropped 53 Injects a PE file into a foreign processes 11->53 15 Baglinox SL Purchase Order FV22011341.Pdf.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.beautycare.solutions 18->33 35 beautycare.solutions 34.102.136.180, 49761, 80 GOOGLEUS United States 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 cmstp.exe 18->22         started        signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-29 14:36:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:i63d rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
b3a42d3eb9f55144a7ebe7ab8e3f01ec636006eb039cb80d181c322e69999420
MD5 hash:
3bfa58757f629a73bbecafea42edac3d
SHA1 hash:
604082095f92ba981edec43a38e5e00ef4e5d1f9
Detections:
win_formbook_g0 win_formbook_auto FormBook
SH256 hash:
bc6b60a1820ba4abea7f05368f852e96cd50a5e7d069bb9e7169bde85b0d0ff4
MD5 hash:
87dd4f9059b960043139576c3d67f84a
SHA1 hash:
f6aa58b279b7800da0d5a80cdc4aab81afe6e59e
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
SH256 hash:
13ca2f7a55b98e1890983122e67935c97e6d9df4429279d49a1324c6d56f0451
MD5 hash:
8b3a92a3409ae046bf3dc0753fcf8685
SHA1 hash:
4455c3efa2bf569f6d180063bb1e104a22581d61
SH256 hash:
21d1b9da0eab670c20634fbe12b47a8afd9e745a4d1f0f885c7b36ef6989443c
MD5 hash:
4d7afa94006f5ef1fafa0943d4a50f7d
SHA1 hash:
0413c96f0915dcca1c13495c6c0678f2ef9d6e42
SH256 hash:
71cd57155de969cf6c54d78327e73c065ef7d4944ec147d15007cb372d29b580
MD5 hash:
38d20cf5e406db0e4f6d79db95cee44e
SHA1 hash:
5bb2ae97a39c545af0f1dc8c9ff0628a46a456f4
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 71cd57155de969cf6c54d78327e73c065ef7d4944ec147d15007cb372d29b580

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments